Leathanach 1 ó 53 torthaí
The effect of immunosuppressant cyclosporin A (CsA) on inward-rectifying K(+)-channels and biochemical analysis have indicated the presence of cyclophilin in guard cells of Vicia faba. In this study, we identified a full-length cDNA sequence, vcCyP, encoding cyclophilin (CyP), a peptidyl-prolyl
In the extrafloral nectary of broad bean and in the companion cells of its subjacent conducting bundle, there is evidence of the presence of acid phosphatase around and in the plasmalemma. This evidence suggests an active transport of sugars during their translocation from cell to cell and their
Phototropins, plant blue light receptors, mediate stomatal opening through the activation of the plasma membrane H(+)-ATPase by unknown mechanisms. Here we report that type 1 protein phosphatase (PP1) positively regulates the blue light signaling between phototropins and the H(+)-ATPase in guard
Guard cell protoplasts of Vicia faba treated with 10 [mu]M (+)abscisic acid (ABA) in the light exhibited a 20% decrease in diameter within 1.5 h, from 24.1 to 19.6 [mu]m. Within 10 s of administration of ABA, a 90% increase in levels of inositol 1,4,5-trisphosphate was observed, provided that cells
The goal of this work was to study the effect of the most common Egyptian food items, Vicia faba beans (VF) and bran, on the carcinogenicity of dibutylnitrosamine (DBN) precursors (dibutylamine and nitrite). Mice receiving DBN precursors showed a delayed gain in body weight as well as decreased
A single dose of 10 mg of 7,12-dimethylbenz[a]anthracene (DMBA), administered to rats through intragastric intubation, was sufficient to induce many biochemical and histopathological changes in their mammary tissue. Significant increases were observed in the activity levels of the enzymes acid
Horseradish allyl isothiocyanate (AITC, a volatile oil) and cyanobacterial microcystin-LR (MCY-LR, a cyclic heptapeptide) affect eukaryotic cell cycle. MCY-LR inhibits protein phosphatases PP1 and PP2A. We aimed to reveal the mechanisms of their cellular effects in a model eukaryote, Vicia
The present study was made to isolate and assess some physiological characteristics of root nodule-colonizing fungi. During this study, 17 fungal species were isolated from root nodule samples taken from faba bean plants (Vicia faba L.) collected from different sites at Assiut area (Egypt). The
Assay conditions, intracellular distribution and change of activity during greening of etiolated seedlings of Vicia faba L. have been investigated for aldose reductase (EC 1.1.1.21), UDP-glucose pyrophosphorylase (EC 2.7.7.9), UDP-glucose 4-epimerase (EC 5.1.3.2) and phosphatidate phosphatase (EC
Photosynthetic carbon fixation in guard cells was reexamined in experiments with highly purified guard cell protoplasts from Vicia faba L. irradiated with red light. The fate of (14)CO(2) (4.8 microcuries of NaHCO(3); final concentration: 100 micromolar) supplied to these preparations was
We aimed to reveal the mechanisms of mitotic spindle anomalies induced by microcystin-LR (MCY-LR), a cyanobacterial toxin in Vicia faba, a well-known model in plant cell and molecular biology. MCY-LR inhibits type 1 and 2A phosphoserine/threonine specific protein phosphatases (PP1 and PP2A) and
Drought and salinity are the major factors that limit the faba bean (Vicia faba L.) production worldwide. The aim of this study is to identify the water stress differentially expressed genes (DEGs) through the root transcriptome analyses of the drought-tolerant Hassawi 2 genotype at
Phosphorylation and dephosphorylation of proteins were investigated in guard-cell protoplasts from Vicia faba L. When guard-cell protoplasts were incubated with 32Pi in the dark for 80 min, several proteins, with molecular masses of 42, 40, 34, 32, 26, and 19 kD, were phosphorylated. Illumination of
The sucrose-induced resumption of cell cycle in the Vicia faba root meristem cells, blocked in two principal control points PCP1/2 by carbohydrate starvation, occurs after 12 h of metabolic regeneration comprising increased activity of sucrose synthase (SuSy) and hexokinase (HK) as well as starch